<!doctype html>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<iframe id="iframe" name="i" src="/common/blank.html"></iframe>

<script>
async_test(t => {
  window.onload = t.step_func(() => {
    navigation.onnavigate = t.unreached_func("onnavigate should not have fired in source window");

    iframe.contentWindow.navigation.onnavigate = t.step_func(e => {
      assert_equals(e.navigationType, "push");
      assert_true(e.cancelable, "cancelable");
      assert_false(e.canIntercept, "canIntercept");
      assert_false(e.userInitiated, "userInitiated");
      assert_false(e.hashChange, "hashChange");
      assert_equals(e.downloadRequest, null);
      assert_equals(e.destination.url, "about:srcdoc");
      assert_false(e.destination.sameDocument);
      assert_equals(e.destination.key, "");
      assert_equals(e.destination.id, "");
      assert_equals(e.destination.index, -1);
      assert_equals(e.formData, null);
      // NavigateEvent sourceElement is still in development, so test whether it is available.
      if ("sourceElement" in e) assert_equals(e.sourceElement, null);
      e.preventDefault();

      // Make sure it doesn't navigate anyway.
      iframe.onload = t.unreached_func("Must not load the srcdoc document");
      t.step_timeout(() => t.done(), 10);
    });

    iframe.srcdoc = "srcdoc contents";
  });
}, "navigate event fires appropriately (and can be canceled) for adding the srcdoc attribute");
</script>
